qOrbital procession affects solar radiation at low latitudes
q è solar radiation affects the strength of low-latitude monsoons
q è monsoon fluctuations changes the precipitation amounts in Southeast Asia
q
è heavy rainfalls increase the amount
of standing water in bogs
q è decaying vegetation used up any oxygen in the water and creates the oxygen-free conditions needed to
generate methane
q è the extent of these boggy area must have expanded during wet monsoon maximum and shrunk during
dry monsoon minimum.